1996 Buick LeSabre Owner's Manual - Page 240

What Kind of Oil to Use Oils recommended for your vehicle can be identified by looking forthe "Starburst" symbol. Thissymbol indicates that the oil has been certified by the American Petroleum Institute (API). Do not use any oil which does not c m y this Starburst symbol. If you change your own oil, be sure you use oil that has the Starburst symbol on the front of the oil container. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certified for easoline eneines. You should also use the proper viscosity oil for your vehicle, as shown in the following chart: ~~ RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS FOR BGl FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SA€ VISCOSITY GRADE 011 FOR THE EXPECTED TEMPERATURE RANGE. HOT WEATHER LOOK . FOR MIS : SYMBOL naena aur 1 J L _ i COLD WEATHER SAE SW-30 DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED 6-12